The marine surface wind field in recent major six typhoons over Seto Inland Sea was estimated by using 2D empirical typhoon models, the MASCON model, and the Mesoscale Model MM5 with GPV data and typhoon bogus. Among these models the MM5 estimated the wind field most precisely and improved storm surge estimation. The empirical model taking account of typhoon forwarding into the gradient wind equation and super gradient wind into the wind speed reduction coefficient gave the better wind speed variation with time near the typhoon center than the empirical model taking the sum of gradient wind and typhoon forwarding vectors. The MASCON model overestimated the effect of land topography on the horizontal wind component and consequently underestimated the wind speed.

Recently, the third generation wave models are widely employed in many countries. However, the examination of their estimation accuracy in an inland sea is not necessarily sufficient due to insufficient wave observation data and difficulty of estimating accurate wind field around the area In this paper, therefore, we applied a modified WAM to Seto Inland Sea with the wind data estimated for Typhoon 0514 with MM5 and Typhoon Bogus. The estimation accuracy of wind and waves were investigated with the data observed at a few stations. Several energy source functions that had been proposed so far were examined in the modified WAM. In addition, ADWAM (Adjoint WAM) was also applied for the data and its applicability and usefulness were discussed.